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2019-04-11 阅读量: 781
删除表中多余的重复记录(多个字段)

问题描述:

删除表中多余的重复记录(多个字段),只留有rowid最小的记录

解决方法:

delete from vitae a 
where (a.peopleId,a.seq) in (select peopleId,seq from vitae group by peopleId,seq having count(*) > 1) and rowid not in (select min(rowid) from vitae
group by peopleId,seq
having count(*)>1);
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